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Сравнительные конструкции

1 as + прилагательное (наречие) в положительной степени + as

такой же …как, так же … как

This rule is as important as the above one.

2 as + прилагательное (наречие) в положительной степени + as + числительное

равняется, составляет, доходит до

Boiling continued for as long as 80 hours.

3 not so + прилагательное (наречие) в положительной степени + as

не такой … как,

не так … как

Old enterprises were usually not so spacious and well-equipped as new ones.

4 прилагательное (наречие) в сравнительной степени + than

чем

Modern desktop personal computers are many times more powerful than the huge computers of the 1960s and 1970s.

5 The + прилагательное (наречие) в сравнительной степени … + the + другое прилагательное (наречие) в сравнительной степени thethe

чем … тем

The less intuitive is the navigation, the more willing are the users to leave the web-site.

XIII. Choose the sentences where the comparative constructions have the following meanings: a) такой жекак; b) не такойкак; с) чем; d) чемтем.

1. Their operating system is considered by many people to be a better product than Microsoft’s. 2. The better you manage to provide users with a sense of visual hierarchy, the easier your content will be to perceive. 3. Operating systems are as old as electronic computers. 4. The better sense of orientation users have, the more trust they can develop toward the company the site represents. 5. There are several advantages in making computers as small as one can. 6. The bigger the mass, the bigger the weight of the body. 7. The new machines were smaller and less expensive than earlier models. 8. These engines are not so powerful as those motors.

XIV. Explain the way of word formation of the following words. Give their Russian equivalents.

Optical, optoelectronic, application, conversion, effective, interference, performance, processing, storage, transmission.

XV. Arrange in pairs the words with similar meaning.

Include, concentrate, displace, handle, comprise, allow, combine, replace, get, permit, unite, obtain, focus, process.

XVI. In the text of task XVII find the word derived from the verb to communicate. Name other derivatives of this verb.

XVII. The read the title of the text and say what the text might be about.

Optical Computing: Still far into the Future?

1. Optoelectronics is a field of technology that combines the physics of light with electricity. It includes fiber optic communications, laser systems, electric eyes, remote sensing systems, medical diagnostic systems and optical information systems. Optoelectronics encompasses the study, design and manufacture of hardware devices that convert electrical signals into photon signals and vice versa. Photons are electromagnetic minute separate pulses. Radio waves, infrared rays, ultraviolet rays, X-rays, and gamma rays all consist of photons. Any device that operates as an electrical-to-optical or optical-to-electrical transducer is considered an optoelectronic device.

2. In most modern computers, electrons travel between transistor switches on metal wires to gather, process and store information. The optical computers of the future will instead use photons travelling on optical fibers or thin films (i.e. thin polymer films for electro-optic applications obtained by means of a laser beam) to perform these functions. But entirely optical computer systems are still far into the future. Right now scientists are focusing on developing electronic-optical hybrids such as electro-optic computers by combining electronics with photonics.

3. In the optical computer of the future, electronic circuits and wires will be replaced by a few optical fibers and films, making the systems more efficient with no interference, more cost effective, lighter and more compact. And faster, too. The thin films allow us to transmit using light.